/*
 * Copyright 2017-2020 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.cloud.services.notifications.graphql.subscriptions.datafetcher;

import graphql.schema.DataFetcher;
import graphql.schema.DataFetchingEnvironment;
import java.util.List;
import org.activiti.cloud.services.notifications.graphql.events.model.EngineEvent;
import org.reactivestreams.Publisher;
import reactor.util.context.Context;

public class EngineEventsPublisherDataFetcher implements DataFetcher<Publisher<List<EngineEvent>>> {

    private final EngineEventsPublisherFactory publisherFactory;

    public EngineEventsPublisherDataFetcher(EngineEventsPublisherFactory publisherFactory) {
        this.publisherFactory = publisherFactory;
    }

    @Override
    public Publisher<List<EngineEvent>> get(DataFetchingEnvironment environment) {
        return publisherFactory
            .getPublisher(environment)
            .contextWrite(Context.of(DataFetchingEnvironment.class, environment));
    }
}
